JDK-8214723 : Release Note: JEP 334: JVM Constants API
- Type: Sub-task
- Component: core-libs
- Sub-Component: java.lang.invoke
- Affected Version: 12
- Priority: P3
- Status: Closed
- Resolution: Delivered
- Submitted: 2018-12-03
- Updated: 2019-04-09
- Resolved: 2018-12-10
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Unresolved : Release in which this issue/RFE will be addressed.
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| JDK 12 |
|---|
12Resolved  |
Description
The new package `java.lang.invoke.constant` introduces an API to model nominal descriptions of class file and run-time artifacts, in particular constants that are loadable from the constant pool. It does so by defining a family of value-based symbolic reference (JVMS 5.1) types, capable of describing each kind of loadable constant. A symbolic reference describes a loadable constant in purely nominal form, separate from class loading or accessibility context. Some classes can act as their own symbolic references (e.g., `String`); for linkable constants a family of symbolic reference types has been added (`ClassDesc`, `MethodTypeDesc`, `MethodHandleDesc`, and `DynamicConstantDesc`) that contain the nominal information to describe these constants.